Update to 2.002005.

• fix accessor extensions that need captured variables for clearers and predicates. (RT#118453)
• avoid relying on '.' being in @INC in tests
• fix Sub::Quote test when run with perl -C or PERL_UNICODE on perl 5.10 (RT#117844)
• improved error messages for invalid sub names in Sub::Quote (RT#116416, RT#117711)
• clarify meta method documentation
• bump Role::Tiny prereq version to get stub in role fix (RT#116674)